As part of the plea deal, the feds suggested that Kerik serve 27 to 33 months behind bars.

Kerik, who served as the city’s police commissioner during the Sept. 11 attacks, appeared in a federal courtroom in White Plains wearing a dark suit and red tie.

The first of his three trials was slated to start on Monday in White Plains.

Before he began formally entering his pleas, a subdued Kerik told Judge Stephen Robinson that, in addition to the White House lies, he also cheated the IRS, helped to prepare false tax returns and made several false statements to the federal government.

Robinson warned Kerik that the maximum sentence for the counts to which he was pleading was 61 years.

Kerik is slated to be sentenced Feb. 18.

“This is a very sad day,” Robinson said.

The judge said he would consider bail for Kerik and that the former top cop had done “much good” in his life.

As part of the deal, Kerik promised to file amended tax returns for 1999, 2003 and 2005.

In a statement, Manhattan US Attorney Preet Bharara said, “No one is above the law.”